What is the Moon's gravity?
a. There is no gravity on the Moon
b. 1/3 of Earth's gravity
c. 1/2 of Earth's gravity
d. 1/6 of Earth's gravity
e. The Moon's gravity is the same as that of Earth.
d
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If a transformation from solid to liquid occurs such that the solid and liquid are always in equilibrium, than the transformation is _____________.
Fill in the blank(s) with the appropriate word(s).
Write the governing equation and the necessary boundary conditions for the problem of a heat exchanger tube as shown in Figure 2-54.
Which statement about stellar motion is incorrect?
A) In general, the closer a star is, the more its proper motion. B) The radial velocity is measured by the Doppler shift. C) The transverse velocity is measured by the proper motion and the distance. D) Like parallax, proper motion is measured over intervals of exactly six months. E) The Pythagorean theorem relates space, transverse, and radial velocities.
A long straight wire is parallel to one edge and is in the plane of a single-turn rectangular loop as shown. If the loop is changing width so that the distance x changes at a constant rate of 4.0 cm/s, what is the magnitude of the emf induced in the loop at an instant when x = 6.0 cm? Let a = 2.0 cm, b = 1.2 m, and I = 30 A
a.
5.3 ?V
b.
2.4 ?V
c.
4.8 ?V
d.
2.6 ?V
e.
1.3 ?V